更多"The Earth's crust ______."的相关试题:
[单项选择]Of all the elements in the Earth's crust, oxygen is known to be the morecommon.
[单项选择]Without the sun's light（）the earth's surface, it would be so cold that life could not exist on the earth.
A. warms
B. warmed
C. warming
D. to warm
[单项选择]It has been estimated that the earth's surface temperature has increased
______ one quarter to three quarters of a degree since 1850. ~
A. to
B. by
C. at
D. with
[单项选择]What percentage of the total earth's water does underground water make up
A. 0.05%.
B. 0.5%.
C. 4.5%.
D. 5%.
[单项选择]As there is always the Earth's gravitational pull, people ______.
A. accept it without questioning it
B. never notice its presence
C. hardly think about how to use it
D. often try to escape from it
[单项选择]Man must stop ______ the earth's atmosphere.
A. filling
B. emitting
C. polluting
D. wasting
[单项选择]_______ its "weights" is the Earth's gravitational attraction for the particular mass..
A. When it gives matter
B. Matter is given
C. What gives matter
D. How it is given matter.
[单选题]The primary cause of all changes in the Earth’s weather is _______ .
A.variation of solar energy received by the Earth’s regions
B.changes in air pressure over the Earth’s surface
C.changes in air moisture content
D.movement of the air masses
[单选题]Great Circle Route is _______ between two points on the earth's surface.
A.the longest distance
B.a route
C.a line
D.the shortest distance
[单选题]The major force that sets the atmosphere in motion comes from the _______ of the earth's surface.
A.circulation of the atmosphere
B.convection process
C.circular motion of the air
D.uneven heating
[单选题]The movement of the atmosphere set forth by the uneven heating of the earth’s surface is generally referred to as the atmospheric _______.
A.convection
B.circulation
C.conviction
D.convective motion
[单选题]_______ is a circle on the surface of the earth, the plane of which passes though the centre of the earth.
A.great circle
B.circle distance
C.a turn
D.turning degree
[单项选择]Earth scientists have come to understand that climate______.
A. is going through a fundamental change
B. has been getting warmer for 10 000 years
C. will eventually change from hot to cold
D. has gone through periodical changes
[单项选择]Sculpture has occasionally been found in the earth in an almost pure state.
A. regularly
B. accidentally
C. sometimes
D. successfully
[单项选择]Some scientists have suggested that Earth is a kind of zoo or wildlife （） for intelligent space beings, like the wilderness areas we have set up on earth to allow animals to develop naturally while we observe them.
A. conservation
B. maintenance
C. storage
D. reserve
[单项选择]Sulphur has occasionally been found in the earth in an almost pure state.
A. regularly
B. accidentally
C. sometimes
D. successfully
[单项选择]How much percent does the sea cover the earth
A. 69
B. 70
C. 71
D. 79
